fix: Fix link-related issues across the site
Some QA items have come in which all pertain to links - links pointing to the wrong place, or links not yet hooked up, or links which need to open in a new tab but don't yet. This MR intends to resolve all straightforward, likeminded issues in one fell swoop.
These fixes include:
- Remove Amazon Smile link from FAQ item about donation methods (#93 (closed))
- Fix donation method links which interlink to other FAQ answers (#94 (closed))
- Populate the link to the Donor FAQ which rests above the "donation amount" part of the form (#98 (closed))
- Ensure footer social media links open in a new tab (#99 (closed))
Fixes #93 (closed), #94 (closed), #98 (closed), #99 (closed).